CVE-2021-43421

A File Upload vulnerability exists in Studio-42 elFinder 2.0.4 to 2.1.59 via connector.minimal.php, which allows a remote malicious user to upload arbitrary files and execute PHP code.

CVSS v3 9.8 CRITICAL
CVSS v2.0 7.5 HIGH

9.8^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

7.5^/10

CVSS v2.0 : HIGH

Vector : AV:N/AC:L/Au:N/C:P/I:P/A:P

Exploitability : 10.0 / Impact : 6.4

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://github.com/Studio-42/elFinder/issues/3429	Exploit Issue Tracking Third Party Advisory
https://twitter.com/infosec_90/status/1455180286354919425	Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:std42:elfinder:*:*:*:*:*:*:*:*

History

13 Apr 2022, 20:30

Type	Values Removed	Values Added
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : 7.5 v3 : 9.8
CWE		CWE-434
CPE		cpe:2.3:a:std42:elfinder::::::::
References	~~(MISC) https://twitter.com/infosec_90/status/1455180286354919425 -~~	(MISC) https://twitter.com/infosec_90/status/1455180286354919425 - Third Party Advisory
References	~~(MISC) https://github.com/Studio-42/elFinder/issues/3429 -~~	(MISC) https://github.com/Studio-42/elFinder/issues/3429 - Exploit, Issue Tracking, Third Party Advisory

07 Apr 2022, 17:15

Type	Values Removed	Values Added
New CVE

Information

Published : 2022-04-07 17:15

Updated : 2024-02-04 22:29

NVD link : CVE-2021-43421

Mitre link : CVE-2021-43421

CVE.ORG link : CVE-2021-43421

JSON object : View

Products Affected

std42

elfinder

CWE

CWE-434

Unrestricted Upload of File with Dangerous Type

{"id": "CVE-2021-43421", "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 7.5, "accessVector": "NETWORK", "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P", "authentication": "NONE", "integrityImpact": "PARTIAL", "accessComplexity": "LOW", "availabilityImpact": "PARTIAL", "confidentialityImpact": "PARTIAL"}, "acInsufInfo": false, "impactScore": 6.4, "baseSeverity": "HIGH", "obtainAllPrivilege": false, "exploitabilityScore": 10.0, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}], "cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 9.8, "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 3.9}]}, "published": "2022-04-07T17:15:08.720", "references": [{"url": "https://github.com/Studio-42/elFinder/issues/3429", "tags": ["Exploit", "Issue Tracking", "Third Party Advisory"], "source": "cve@mitre.org"}, {"url": "https://twitter.com/infosec_90/status/1455180286354919425", "tags": ["Third Party Advisory"], "source": "cve@mitre.org"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-434"}]}], "descriptions": [{"lang": "en", "value": "A File Upload vulnerability exists in Studio-42 elFinder 2.0.4 to 2.1.59 via connector.minimal.php, which allows a remote malicious user to upload arbitrary files and execute PHP code."}, {"lang": "es", "value": "Se presenta una vulnerabilidad de carga de archivos en Studio-42 elFinder versiones 2.0.4 a 2.1.59, por medio del archivo connector.minimal.php, que permite a un usuario malicioso remoto cargar archivos arbitrarios y ejecutar c\u00f3digo PHP"}], "lastModified": "2022-04-13T20:30:14.030", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:std42:elfinder:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "E65F5DC8-8A1C-4701-8128-F7932F8382B2", "versionEndIncluding": "2.1.59", "versionStartIncluding": "2.0.4"}], "operator": "OR"}]}], "sourceIdentifier": "cve@mitre.org"}